Abba, E. J. and A. Lovato. 1998. Effect of seed storage temperature and relative humidity on maize
(Zea mays L.) seed viability and vigour. Seed Sci. Technol. 27: 101-114.
Abul-Baki, A. A. and J. D. Anderson. 1973 .Vigour determination in soybean by multiple criteria. Crop Sci.
13:630-633.
Anderson, B. and Bengtsson A. 1989. The influence of row spacing, seed rate and sowing time on over
wintering and yield in winter oilseed rape (Brassica napus L.).Can. J. Plan. Sci. 69:43-51.
Angelini, L., L. Lazzeri, S. Galletti, A. Cozzani, M. Macchia and S. Palmieri. 1998. Antigerminative activity
of three glucosinolate-derived products generated by myrosinate hydrolysis. Seed Sci and Technol. 26.: 71-
780.
Anonymous, 2008a. Agricultural Statistics, Ministry of agriculture, Deputy of planning and economic affairs,
Office of statistics and information technology, First version: Agricultural and Garden Crops.
Anonymous, 2008b. International rules for seed testing. Chapter 5: germination test PP: 1-57.
Bilsborrow, P.E., E.J. Evans and F.J. Zhao. 1993. The influence of spring nitrogen on yield, yield
components and glucosinolate content of autumn-sown oilseed rape (Brassica napus L.). J. Agric. Sci. 120:
219-224.
Bulisani, E. A. and R. L. Warner. 1980. Seed protein and nitrogen effects upon seedling vigour in wheat.
Agron. J. 72.: 657-662.
Ejaz Ahmad warrich, S .M. and A. Basra. 2002. Effect of nitrogen on grain quality and vigour in wheat. Int.
J. Agric. Biol. 5: 325-329.
Ellis, R. H. and E. H. Roberts. 1981. The quantification of ageing and survival in orthodox seeds. Seed Sci.
Technol. 9.:377-409.
Farajnia, A. 2004. Interaction effect of irrigation regime and nitrogen fertilizer on yield and oil percentage
canola in east Azerbaijan, Tikmedash region. J. Agric. Sci (University of Tabriz); 14(1);25-34.
Gerath, N and A. Schweiger. 1991. Improvement of the use of nutrients in winter rape. A strategy of
economically and ecologically responsible fertilizing. PP:1197-1201. in D. I. Mc Gregor (Ed). Proceedings
of the 8th International Rapeseed Congress, Saskatoon, Canada.
Kuchtova, P., P. Baranyk, J. Vasak and J. Fabry. 1996. Yield forming factors of oilseed rape. Rosliny
Oleiste, 17: 223-234.
Landivar, J. A. and J. N. Jenkins. 1983. The application of Gossym in genetic feasibility studies. Analyses of
increasing photosynthesis, specific leaf weight and longevity of leaves. Crop Sci. 23:504-510
Pallais, N., S. Villagrcia, J. Tapia. and R. Garcia. 1987. Effect of supplemental nitrogen on true potato seed
weight. American Potato J. 64:483-491.
Pollock, B. M. and E.E. Ross. 1972. Seed and seedling vigour. Kozlowski, T. T. (Eds.). Seed biology,
Academic Press.
Roodi, D., S. Rahmanpour and F. Javidfar. 2003. Canola agronomy. Oil seed research department. Seed and
Plant Improvement Institute(SPII), Technical Monograph, PP: 53.
Sawan, Z. M., M. S. Maddah El Din and B.R. Gregg. 1989. Effect of nitrogen fertilization and foliar
application of calcium and micro-elements on cotton seed yield, viability and seedling vigor. Seed Sci.
Technol. 17:421-431.
Scott, R. K., E. A. Oguremi, J. D. Ivins and N. J. Mendham. 1973. The effect of fertilizers and harvest date
on growth and yield of oilseed rape sown in autumn and spring. J. Agric. Sci. 81: 287-293.
Semeniuk, P. 1964. Effect of Various Levels of Nitrogen, Phosphorus, and Potassium on Seed Production and
Germination of Matthiola incana. Bot. Gazette,. 125: 62-65.
Welch, R. M. 1986. Effect of nutrition deficiencies on seed production and quality. Adv. Plant Nutrition. 2:205-
247.
)